45200121 has 4 divisors (see below), whose sum is σ = 60266832. Its totient is φ = 30133412.

The previous prime is 45200119. The next prime is 45200123. The reversal of 45200121 is 12100254.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (45200119) and next prime (45200123).

It is a cyclic number.

It is not a de Polignac number, because 45200121 - 2¹ = 45200119 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 45200121.

It is not an unprimeable number, because it can be changed into a prime (45200123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7533351 + ... + 7533356.

It is an arithmetic number, because the mean of its divisors is an integer number (15066708).

Almost surely, 2^45200121 is an apocalyptic number.

It is an amenable number.

45200121 is a deficient number, since it is larger than the sum of its proper divisors (15066711).

45200121 is a wasteful number, since it uses less digits than its factorization.

45200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15066710.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 45200121 is about 6723.1035244149. The cubic root of 45200121 is about 356.2158167263.

Adding to 45200121 its reverse (12100254), we get a palindrome (57300375).

The spelling of 45200121 in words is "forty-five million, two hundred thousand, one hundred twenty-one".